Finding the Fourth Proportional to 3,459.86, 5,190.62 and 994.63

Step by Step Solution

1. Step 1: Write the proportion equation
   3,459.86 : 5,190.62 = 994.63 : x
2. Step 2: Convert to fraction form
   3,459.86/5,190.62 = 994.63/x
3. Step 3: Cross multiply
   3,459.86x = 5,190.62 × 994.63
4. Step 4: Simplify right side
   3,459.86x = 5,162,746.37
5. Step 5: Solve for x
   x = 5,162,746.37/3,459.86
6. Step 6: Final answer
   x = 1,492.18